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Electra TRIO 72 DCI Service Manual
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Electra TRIO 72 DCI Service Manual

Multi split trio quattro dci
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Service Manual
Multi Split Trio Quattro DCI
Indoor Units
Outdoor Units
WNG 25 DCI INV
WNG 35 DCI INV
WNG 50 DCI INV
K 25 DCI INV
TRIO 72 DCI
K 35 DCI INV
K 50 DCI INV
QUTTRO 80 DCI
PXD 25 DCI INV
PXD 35 DCI INV
PXD 50 DCI INV
LS 35 DCI INV
REFRIGERANT
R410A
HEAT PUMP
JUNE 2005
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Summary of Contents for Electra TRIO 72 DCI

  • Page 1 Outdoor Units WNG 25 DCI INV WNG 35 DCI INV WNG 50 DCI INV K 25 DCI INV TRIO 72 DCI K 35 DCI INV K 50 DCI INV QUTTRO 80 DCI PXD 25 DCI INV PXD 35 DCI INV...
  • Page 2 LIST OF EFFECTIVE PAGES LIST OF EFFECTIVE PAGES Note: Changes in the pages are indicated by a “Revision#” in the footer of each effected page (when none indicates no changes in the relevant page). All pages in the following list represent effected/ non effected pages divided by chapters.
  • Page 3 TABLE OF CONTENTS Table of Contents INTRODUCTION ....................1-1 PRODUCT DATA SHEET ..................2-1 RATING CONDITIONS ..................3-1 OUTLINE DIMENSIONS ..................4-1 PERFORMANCE DATA ..................5-1 PRESSURE CURVES ...................6-1 ELECTRICAL DATA ....................7-1 WIRING DIAGRAMS .....................8-1 REFRIGERATION DIAGRAMS ................9-1 10. TUBING CONNECTIONS ..................10-1 11. CONTROL SYSTEM .....................11-1 12.
  • Page 4 INTRODUCTION INTRODUCTION General The Trio/Quattro DCI Multi series is a full line multi-tubing system with 3 to 4 connected indoor units. The multi-split inverter is a high level technology product for residential and commercial application offering comfort, low noise operation and energy saving. Main Features 1.2.1 High Technology...
  • Page 5 INTRODUCTION Matching Table R410A DCI INDOOR UNITS OUTDOOR UNITS MODEL REFRIGER. WNG 25/35/50 K 25/35/50 PXD 25/35/50 LS 35 Trio 72 DCI R410A √ √ √ √ Quattro 80 R410A √ √ √ √ Indoor Unit combinations Trio Quattro Unit A...
  • Page 6 PRODUCT DATA SHEET PRODUCT DATA SHEET Outdoor TRIO 72 DCI Specifications. Model TRIO-72 DCI R410A Operation Mode Cooling Heating Kcal/hr 6,190 (1,120~7,740) 7,740 (820~9,460) (1), (2) Btu/hr 24,570 (4,440~30,710) 30,710 (3,240~37,530) Capacity 7,200 (1,300~9,000) 9,000 (950~11,000) Total Input 2,240 (500~3,000) 2,370 (500~3,000) E.E.R (Cooling) / C.O.P (Heating)
  • Page 7 PRODUCT DATA SHEET Outdoor QUATTRO-80 DCI Specifications. Model QUATTRO-80 DCI R410A Operation Mode Cooling Heating Kcal/hr 6,880 (1,200~7,910) 8,170 (820~9,460) (1), (2) Btu/hr 27,300 (4,780~31,390) 32,410 (3,240~37,530) Capacity 8,000 (1,400~9,200) 9,500 (950~11,000) Total Input 2,490 (500~3,000) 2,380 (400~3,000) E.E.R (Cooling) / C.O.P (Heating) 3.21 4.00 10.8...
  • Page 8 PRODUCT DATA SHEET Indoor Units Data 2.3.1 WNG 25 DCI Specifications Model Indoor Unit / Type WNG 25 DCI / Wall Mounted Installation Method FLARE Power Supply V/Ph/Hz 220-240 / 1/ 50 Fan Type & Quantity Crossflow *1 530/570 Airflow H/M/L 430/460 Cooling / Heating...
  • Page 9 PRODUCT DATA SHEET 2.3.3 WNG 50 DCI Specifications Model Indoor Unit / Type WNG 50 DCI / Wall Mounted Installation Method FLARE Power Supply V/Ph/Hz 220-240 / 1/ 50 Fan Type & Quantity Crossflow *1 Airflow H/M/L Cooling / Heating Sound Power Level L - H dB (A)
  • Page 10 PRODUCT DATA SHEET 2.3.5 K 35 DCI Specifications Model Indoor Unit / Type K 35 DCI / Cassette Installation Method FLARE Power Supply V/Ph/Hz 220-240 / 1/ 50 Fan Type & Quantity Centifugal *1 Airflow H/M/L 580/620 510/560 435/450 Cooling / Heating Sound Power Level L - H dB (A)
  • Page 11 PRODUCT DATA SHEET 2.3.7 PXD 25 DCI Specifications Model Indoor Unit / Type PXD 25 DCI Floor/ceiling Installation Method FLARE Power Supply V/Ph/Hz 220-240 / 1/ 50 Fan Type & Quantity Centifugal *2 Airflow H/M/L Cooling / Heating Sound Power Level L - H dB (A) 47-50...
  • Page 12 PRODUCT DATA SHEET 2.3.9 PXD 50 DCI Specifications Model Indoor Unit / Type PXD 50 DCI Floor/ceiling Installation Method FLARE Power Supply V/Ph/Hz 220-240 / 1/ 50 Fan Type & Quantity Centifugal *2 Airflow H/M/L Cooling / Heating Sound Power Level L - H dB (A) 56 - 65...
  • Page 13 RATING CONDITIONS RATING CONDITIONS Standard conditions in accordance with ISO 5151, ISO 13253 (for ducted units) and EN 14511. Cooling: Indoor: C DB 19 C WB Outdoor: 35 C DB Heating: Indoor: C DB Outdoor: 7 C DB 6 C WB Operating Limits Indoor Outdoor...
  • Page 14 OUTLINE DIMENSIONS OUTLINE DIMENSIONS Indoor Unit: WNG 25/35 DCI Indoor Unit: WNG 50 DCI Service Manual - Trio_Quattro DCI Revision Y05-01 CONTENT...
  • Page 15 OUTLINE DIMENSIONS Indoor Unit: K 25, 35, 50 DCI Indoor Unit: PXD 25, 35, 50 DCI Revision Y05-01 Service Manual - Trio_Quattro DCI CONTENT...
  • Page 16 CONTENT...
  • Page 17 PERFORMANCE DATA PERFORMANCE DATA Outdoor Unit Trio-72 DCI Combinations (Based on WNG) 5.1.1 Cooling Energy Cooling Capacity [KW] Power Consumption [W] Efficiency Nom. Class Model Nom. Min. Max. Nom. Min. Max. 2.50 2.50 1.30 3.70 1,025 3.65 3.50 3.50 1.30 4.40 1,223 3.62...
  • Page 18 PERFORMANCE DATA 5.1.2 Heating Power Consumption Heating Capacity [KW] Energy Model Efficiency Nom. Class Nom. Min. Max. Nom. Min. Max. 3.40 3.40 0.95 4.00 4.96 4.30 4.30 0.95 5.20 1,003 1,320 4.29 6.20 6.20 1.11 7.50 1,673 2,131 3.71 25+25 3.60 3.60 7.20...
  • Page 19 PERFORMANCE DATA Outdoor Unit Quattro-80 DCI Combinations (Based on WNG) 5.2.1 Cooling Power Consumption Cooling Capacity [KW] Energy Model Efficiency Nom. Class Nom. Min. Max. Nom. Min. Max. 2.50 2.50 1.40 3.70 1,025 3.65 3.50 3.50 1.40 4.40 1,223 3.62 5.00 5.00 1.60...
  • Page 20 PERFORMANCE DATA 5.2.2 Heating Power Consumption Heating Capacity [KW] Energy Model Efficiency Nom. Class Nom. Min. Max. Nom. Min. Max. 3.40 3.40 0.95 4.00 4.96 4.30 4.30 0.95 5.20 1,207 4.54 6.20 6.20 1.11 7.50 1,497 1,875 4.14 25+25 3.64 3.64 7.28 1.43...
  • Page 21 PERFORMANCE DATA WNG 25 DCI 5.3.1 Cooling Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB 22/15 24/17 27/19 29/21 32/23 DATA TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20...
  • Page 22 PERFORMANCE DATA 5.5.3 Heating Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66 0.62...
  • Page 23 PERFORMANCE DATA WNG 35 DCI 5.4.1 Cooling Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal...
  • Page 24 PERFORMANCE DATA 5.4.3 Heating Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66 0.62...
  • Page 25 PERFORMANCE DATA WNG 50 DCI 5.5.1 Cooling Capacity Factors - Unit D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL 22/15 24/17 27/19 29/21 32/23 ENTERING AIR DB DATA TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range)
  • Page 26 PERFORMANCE DATA 5.5.3 Heating Capacity Factors - Unit D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.46 0.39 0.32 -15/-16 0.70 0.75 0.80 0.60 0.54 0.47 -10/-12 0.79...
  • Page 27 PERFORMANCE DATA K 25 DCI 5.6.1 Cooling Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB 22/15 24/17 27/19 29/21 32/23 DATA TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20...
  • Page 28 PERFORMANCE DATA 5.6.3 Heating Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66 0.62...
  • Page 29 PERFORMANCE DATA K 35 DCI 5.7.1 Cooling Capacity Factors - Run Mode (Unit A,B,C or D) 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC]...
  • Page 30 PERFORMANCE DATA 5.7.3 Heating Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/ DATA WB TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66...
  • Page 31 PERFORMANCE DATA K 50 DCI 5.8.1 Cooling Capacity Factor - Unit D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal (protection range)
  • Page 32 PERFORMANCE DATA 5.8.3 Heating Capacity Factor - Unit D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.46 0.39 0.32 -15/-16 0.70 0.75 0.80 0.60 0.54 0.47 -10/-12 0.79...
  • Page 33 PERFORMANCE DATA PXD 25 DCI 5.9.1 Cooling Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal...
  • Page 34 PERFORMANCE DATA 5.9.3 Heating Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/ DATA WB TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66...
  • Page 35 PERFORMANCE DATA 5.10 PXD 35 DCI 5.10.1 Cooling Capacity Factors - Run Mode (Unit A,B,C or D) 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC]...
  • Page 36 PERFORMANCE DATA 5.10.3 Heating Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/ DATA WB TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66...
  • Page 37 PERFORMANCE DATA 5.11 PXD 50 DCI 5.11.1 Cooling Capacity Factor - Unit D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL 22/15 24/17 27/19 29/21 32/23 ENTERING AIR DB DATA TEMPERATURE [ºC] 80 - 110 % of nominal -10 - 20 80 - 105 % of nominal...
  • Page 38 PERFORMANCE DATA 5.11.3 Heating Capacity Factor - Unit D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/ DATA WB TEMPERATURE [ºC] 0.46 0.39 0.32 -15/-16 0.70 0.75 0.80 0.60 0.54 0.47 -10/-12...
  • Page 39 PERFORMANCE DATA 5.12 LS 35 DCI 5.12.1 Cooling Capacity Factors - Run Mode (Unit A,B,C or D) 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB/WB TEMPERATURE [ºC] OD COIL ENTERING AIR DB DATA 22/15 24/17 27/19 29/21 32/23 TEMPERATURE [ºC]...
  • Page 40 PERFORMANCE DATA 5.12.3 Heating Capacity Factors - Unit A,B,C or D 230[V] : Indoor Fan at High Speed. ID COIL ENTERING AIR DB TEMPERATURE [ºC] OD COIL ENTERING AIR DB/WB DATA TEMPERATURE [ºC] 0.64 0.59 0.55 -15/-16 0.60 0.66 0.72 0.71 0.66 0.62...
  • Page 41 PERFORMANCE DATA 5.13 Tubing Length Capacity Correction Factor (F ) - one way 5.13.1 Cooling Tubing Length Capacity Ratio - Cooling (1 Unit) 1.06 1.01 0.96 0.91 0.86 0.81 0.76 Tubing Length [m] 5.13.2 Heating Tubing Length Capacity Ratio - Heating (1 Unit) 1.06 1.01 0.96...
  • Page 42 PERFORMANCE DATA 5.14 Model Correction Factors (F Capacity Power input Model Cooling Heating Cooling Heating WNG DCI 1.00 1.00 1.00 1.00 K DCI 1.03 1.07 1.01 1.10 PXD DCI LS DCI 15.15 Calculation Example Outdoor Unit Quattro-80 DCI Indoor Combination WNG25+WNG35+K35+WNG50 Operation Mode Cooling Mode...
  • Page 43 PRESSURE CURVES PRESSURE CURVES Model: TRIO-72 DCI 6.1.1 Cooling – Technician Mode Bar(g) Discharge Pressure - Cooling (Technician Mode) (WNG25+25+25 ; 5m each) 40.0 35.0 32/23 30.0 29/21 27/19 24/17 25.0 22/15 20.0 15.0 Outdoor DB Temperature [ºC] Suction Pressure - Cooling (Technician Mode) Bar(g) (WNG25+25+25 ;...
  • Page 44 PRESSURE CURVES 6.1.2 Heating – Technician Mode Discharge Pressure - Heating (Technician Mode) (WNG25+25+25 ; 5m each) Bar(g) 34.00 32.00 30.00 28.00 26.00 24.00 22.00 20.00 18.00 16.00 14.00 12.00 10.00 Outdoor DB Temperature [ºC] Suction Pressure - Heating (Technician Mode) Bar(g) (WNG25+25+25 ;...
  • Page 45 PRESSURE CURVES 6.1.3 Tubing Length correction Factor Tubing Length Pressure Ratio - Cooling 1.02 1.02 1.01 1.01 Cooling Pd Cooling Ps 1.00 1.00 0.99 0.99 0.98 0.98 Total Tubing Lengtht [m] Tubing Length Pressure Ratio - Heating 1.02 1.02 1.01 1.01 1.00 1.00...
  • Page 46 PRESSURE CURVES Model: QUATTRO-80 DCI 6.2.1 Cooling – Technician Mode Bar(g) Discharge Pressure - Cooling (Technician Mode) (WNG25+25+25+25 ; 5m each) 40.0 35.0 32/23 30.0 29/21 27/19 24/17 25.0 22/15 20.0 15.0 Outdoor DB Temperature[ºC] Suction Pressure - Cooling (Technician Mode) Bar(g) (WNG25+25+25+25 ;...
  • Page 47 PRESSURE CURVES 6.2.2 Heating – Technician Mode Discharge Pressure - Heating (Technician Mode) Bar(g) (WNG25+25+25+25 ; 5m each) 30.00 28.00 26.00 24.00 22.00 20.00 18.00 16.00 14.00 12.00 10.00 Outdoor WB Temperature [ºC] Suction Pressure - Heating (Technician Mode) Bar(g) (WNG25+25+25+25 ;...
  • Page 48 PRESSURE CURVES 6.2.3 Tubing Length correction Factor (F Tubing Length Pressure Ratio - Cooling 1.02 1.02 1.01 1.01 Cooling Pd Cooling Ps 1.00 1.00 0.99 0.99 0.98 0.98 Total Tubing Lengtht [m] Tubing Length Pressure Ratio - Heating 1.02 1.02 1.01 1.01 1.00...
  • Page 49 PRESSURE CURVES 6.2.4 Outdoor Unit Code correction Factor (F Cooling Heating Suction Discharge Suction Discharge Code Pressure Pressure Pressure Pressure 1.00 1.00 1.00 1.00 1.02 1.01 1.00 0.99 1.04 1.01 0.99 0.98 1.05 1.02 0.99 0.97 1.07 1.02 0.98 0.96 Calculation Example Outdoor Unit Quattro-80 DCI...
  • Page 50 ELECTRICAL DATA ELECTRICAL DATA Power Supply 1 PH, 220-240 VAC, 50Hz Connected to Outdoor Maximum Current 16 A Inrush Current 35 A Starting Current 11 A Circuit breaker 20 A Power supply wiring - No. x cross section 3 X 2.5 mm Interconnecting cable - No.
  • Page 51 WIRING DIAGRAMS WIRING DIAGRAMS Outdoor Units: TRIO-72, QUATTRO-80 DCI Service Manual - Trio_Quattro DCI Revision Y05-01 CONTENT...
  • Page 52 REFRIGERATION DIAGRAMS REFRIGERATION DIAGRAMS TRIO-72 DCI, QUATTRO-80 DCI Outdoor Unit Refrigerant System Diagram Service Manual - Trio_Quattro DCI Revision Y05-01 CONTENT...
  • Page 53 TUBING CONNECTIONS TUBING CONNECTIONS TUBE (Inch) ¼” ⅜” ½” ⅝” ¾” TORQUE (Nm) Flare Nuts 11-13 40-45 60-65 70-75 80-85 Valve Cap 13-20 13-20 18-25 18-25 40-50 Service Port Cap 11-13 11-13 11-13 11-13 11-13 Valve Protection Cap-end Refrigerant Valve Port (use Allen wrench to open/close) Valve Protection Cap Refrigerant Valve Service Port Cap...
  • Page 54 CONTROL SYSTEM CONTROL SYSTEM 11.1 Abbreviations Abbreviation Definition Air Condition Building Management System System Power Compressor Top Temperature sensor DC Inverter Electronic Expansion Valve Heating Element Human Machine Interface Heat Sink Temperature sensor Hertz (1/sec) – electrical frequency Indoor Coil Temperature (RT2) sensor Indoor Unit Micro Controller Unit Outdoor Air Temperature sensor...
  • Page 55 CONTROL SYSTEM Control Power 230V ac Input Filter 230V ac 3.3V Low voltage 380V Application Power supply Control Feedback Alarm Display EEV’s IFAN COMP Base Heater Revision Y05-01 Service Manual - Trio_Quattro DCI 11-2 CONTENT...
  • Page 56 CONTROL SYSTEM 11.2.7 Dry Contacts Dry contacts are used to interface the system with an external building management system (BMS). Night input. Switches the system to night mode when closed. During night mode, the outdoor unit speed will be reduced in order to reduce the system noise level.
  • Page 57 CONTROL SYSTEM 11.3 General Operating Rules 11.3.1 Initialization Initialization process is the first operation done each time power is up. The targets of the initialization are: Addressing of IDU’s Identification of connected IDU’s IDU Matching Check EEV’s homing (reset position) Restoring Parameters from EEPROM/Jumpers/Dipswitches 11.3.1.1 IDU’s Initialization...
  • Page 58 CONTROL SYSTEM 11.3.2 Communication with Indoor Units 11.3.2.1 Communication Failures Definition Two types of communication failures are diagnosed. The communication failures are checked separately for each IDU channel. 11.3.2.1.1 ‘Bad Communication’ fault The system keeps a balance of a good/bad communication packet ratio for each active communication channel.
  • Page 59 CONTROL SYSTEM 11.4 Indoor Unit Control 11.4.1 Indoor Fan Control 10 Indoor fan speeds are determined for each model. 5 speeds for each mode cool/dry/fan or heat. When user sets the indoor fan speed to a fixed speed (Low/ Medium/ High), unit will operate constantly at set speed.
  • Page 60 CONTROL SYSTEM 11.4.3.2 Indoor Fan Control in Heat Mode Indoor fan speed depends on the indoor coil temperature: ICTST ICTVL ICTL ICTH ICTT 11.4.4 Auto Cool/Heat Mode When in auto cool heat mode unit will automatically select between cool and heat mode according to the difference between actual room temperature and user set point temperature (ΔT).
  • Page 61 CONTROL SYSTEM 11.4.10 Indoor Unit Dry Contact Indoor unit Dry contact has two alternative functions that are selected by J8. Status Function Contact = Open Contact = Short J8 = Open Presence Detector Connection No Limit Forced to STBY J8 = Short Power Shedding Function No Limit Limit NLOAD...
  • Page 62 CONTROL SYSTEM STBY Cool Heat Auto (Low) User User User User User (Med) setting setting setting setting setting IFAN IFAN IFAN IFAN IFAN (High) speed speed speed speed speed (Turbo) (Auto) Backlight(red) Backlight(green) 11.4.12.3 Floor/Ceiling Model STANDBY Lights up when the Air Conditioner is connected to power and is ready for operation INDICATOR 1.
  • Page 63 CONTROL SYSTEM 11.5 Run Mode Run mode is the default operation mode of the system. This is the standard operation mode that is active in field application (at customer site). System can go from run mode to other operation modes through keyboard or serial ports. 11.5.1 Mode Setting Mode defines the ODU operation mode.
  • Page 64 CONTROL SYSTEM 11.5.2 Compressor Speed Control 11.5.2.1 Compressor Min On/Off time Compressor minimum OFF time is MinOFFTime minutes except during Deicing protection. Compressor minimum ON time is MinOnTime minutes, minimum ON time is ignored during protections, and when unit is turned to STBY. 11.5.2.2 Compressor Speed calculation During normal operation (excluding protections), the compressor speed is limited by the...
  • Page 65 CONTROL SYSTEM 11.5.2.5 Speed Step Limitations 11.5.2.5.1 Step 1 and step 2 The compressor speed cannot go below Step1RPS or above Step2RPS during 3 continuous minutes once after the compressor starts up when the ODU unit changes from STBY 11.5.2.5.2 Step 3 limit The speed cannot go higher than Step3RPS unless it was operating for more than 1...
  • Page 66 CONTROL SYSTEM EEV Opening EEV is initialized by Change current EEV opening + 20 to Idle and defined as 0. 11.5.3.4 EEV Opening Determination The target EEV value is the sum of open loop value (OL) and a result of the accumulative correction values (CV).
  • Page 67 CONTROL SYSTEM 11.5.4 Outdoor Fan Speed Control 11.5.4.1 General Rules o OFAN operates between OFMinRPM to OFMaxRPM. o Min time for speed change of OFAN OFMinTimeReduce (60 seconds). There are 4 defined speeds – High, Med, Low, and Very Low. The actual OFAN speeds are defined according to the following table: Speed COOL...
  • Page 68 CONTROL SYSTEM Base Heater When OAT is faulty the base heater will be “ON” continuously in HEAT mode. 11.5.7 Thermodynamic Protections 11.5.7.1 Protection level definition Five protection levels are defined: Normal – No protection status is ON. Stop-Rise (SR) – System is in protection, first level D1 - System is in protection, second level D2 - System is in protection third level Stop-Compressor (SC) –...
  • Page 69 CONTROL SYSTEM 11.5.7.3.2 Indoor Coil over Heating Protection ICT Trend Fast Fast Decreasing No Change Increasing Decreasing Increasing ICT > 55 53 < ICT ≤ 55 49 < ICT ≤ 53 47 < ICT ≤ 49 45 < ICT ≤ 47 Norm Norm 43 <...
  • Page 70 CONTROL SYSTEM OAT – Outdoor Air Temperature TLD – Time from Last Deicing DI – Deicing Interval (Time Interval between Two Deicing) DST – Deicing static threshold (Temperature) Deicing interval time when compressor is first started in heat mode, is 10 minutes if OCT < -2, and is 40 minutes in other cases.
  • Page 71 CONTROL SYSTEM Water Level LEVEL4 LEVEL2&3 LEVEL1 Pump NLOAD BLINK OPER LED NORMAL 11.5.9.2 1 Level Logic (used in all models except for floor/ceiling models) Level Don’t care Normal Don’t care Overflow Overflow when Overflow when unit is ON unit is OFF Overflow Water Level Normal...
  • Page 72 CONTROL SYSTEM 11.6 Installation Test Mode See “ APPENDIX ”. 11.7 Technician Test Mode This test is aimed for the technicians to check the system under a preset compressor and outdoor fan values while the expansion valves will function according to the normal running mode.
  • Page 73 CONTROL SYSTEM 11.8 User Interface 11.8.1 User interface description o The user interface uses three 7 segments, and 4 keys. o Keys, The 4 keys are: - Scroll - used to scroll between options (up and down) - Select - use to select an option - Escape - Will go up one level in the menu Select o The user interface concept is Tree menus.
  • Page 74 CONTROL SYSTEM 11.8.3 Menus 11.8.3.1 Main Menu Mode (Cl/Ht/Sb) Technician Test (tt) Technician Test Cool (ttC) Technician Test Cool (ttH) Installation Test (it) Diagnostics (dia) Outdoor Unit (oxx) Indoor Unit A (axx) Indoor Unit B (bxx) Indoor Unit C (cxx) Indoor Unit D (dxx) Set Up (Stp) First IDU Wins (idu)
  • Page 75 CONTROL SYSTEM Technician Test mode is exited after 60 minutes from entry. All the menus, except technician menus- Parameter changing, Status, Technician Test and their sub menus, are automatically exited to the main menu after 1 continuous minute out of any press. When Technician test cool or heat menu is selected, it will blink constantly until this menu is escaped.
  • Page 76 CONTROL SYSTEM 11.8.3.3 Status (Sub Menu) Status (Stt) ICT-A ICT-B ICT-C ICT-D Operation Mode Operation Mode-A Operation Mode-B Operation Mode-C Operation Mode-D Load Load-A Load-B Load-C Load-D Operation Mode OFAN Speed RGT-A RGT-B RGT-C RGT-D Suction EEV A EEV B EEV C EEV D Power (System)
  • Page 77 CONTROL SYSTEM Notes: x For the temperature display, when a thermistor is shorted or disconnected it shows FLT (FLt), when it is disabled it shows DIS (dis). x It’s possible to present a number between 999 and 99,999 by alternating between two numbers (each number is presented for 1 second).
  • Page 78 CONTROL SYSTEM 11.10.3 Compressor Parameters Compressor Parameters Value MinOFFTime MinOnTime MaxSpeedC MaxSpeedH Step1RPS Step2RPS Step3RPS 11.10.4 OFAN parameters EEV Parameters Value OFMinRPM OFMaxRPM 1000 NightRPM OFMinTimeReduce (Sec) OFLowSpC OFMedSpC OFLowSpH OFMedSpH 11.10.5 Indoor Units SW Parameters 11.10.5.1 General Parameters for All Models: Parameters defining the indoor fan speed as a function of Indoor Coil temperature in heat mode (ICT): 11.10.5.1.1 Parameters for defrost protection:...
  • Page 79 CONTROL SYSTEM 11.10.5.2 Model Depended Parameters: Ducted Wall Mounted Models Floor/Ceiling Models Cassette Models Parameter name Models NLOAD limits as a function of selected indoor fan speed MaxNLOADIF1C MaxNLOADIF2C MaxNLOADIF3C MaxNLOADIF4C MaxNLOADIF5C Indoor Fan speeds IFVLOWC IFLOWC IFMEDC 1050 IFHIGHC 1050 1100 1200...
  • Page 80 TROUBLESHOOTING TROUBLESHOOTING WARNING!!! When Power Up – the whole outdoor unit controller, including the wiring, is under HIGH VOLTAGE!!! Never open the Outdoor unit before turning off the Power!!! When turned off, the system is still charged (400V)!!! It takes about 1 Min. to discharge the system. Touching the controller before discharging may cause an electrical shock!!! For safe handling of the controller please refer to section 12.5 below.
  • Page 81 TROUBLESHOOTING SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION Indoor coil block Clean filters and/or remove block Remove block and/or avoid air by- Outdoor coil block pass EEV problem Check EEV ( 12.4.7) Refrigerant leakage Check refrigeration system ( 12.2) Compressor is over heated and unit does Indoor coil block Clean filters and/or remove block not generate capacity...
  • Page 82 TROUBLESHOOTING Fault Name Fault Description Corrective Action OFAN- Vospd Exceeds speed high limit Check motor type matches motor jumpers in exceeded controller Make necessary arrengments in unit installation location to avoid back wind Avoid EMC problems ( 12.4.10.1) Compressor- IPM Fault Over current / Over temperature of Check no obstruction to controller air opening compressor IPM...
  • Page 83 TROUBLESHOOTING 12.3.2 Fault Code for Indoor unit Pressing Mode button for long will activate diagnostic mode by the acknowledgment of 3 short beeps and lighting of COOL and HEAT LED’s. When Indoor diagnostics is displayed, all four LED’s (STBY, Operate, Filter, TMR) are on. Entering diagnostics in STBY mode allows only viewing of status (fault-display).
  • Page 84 TROUBLESHOOTING 12.3.3 Indoor unit diagnostics and corrective actions Probable Cause Corrective Action Fault Check sensor connections or Sensor failures Sensors not connected or damaged replace sensor Indoor and Outdoor controllers are Communication mismatch Replace Indoor controller with different versions Communication or grounding wiring is Check Indoor to Outdoor wiring and No Communication not good...
  • Page 85 TROUBLESHOOTING The normal value should be between 10 to 20 . Change to Stand-by or Power OFF and re-start - If the fault is still active - replace controller. 12.4.5 Checking the Compressor Check Compressor connections - Repair if needed. Use a current probe (“Clamp”) to assure that there is an AC current on each phase –...
  • Page 86 TROUBLESHOOTING (insulate for noise or distance from the noise source): 1. Use shielded wires. 2. Move unit away from the noise source. 12.4.10.2 EMC troubles to near by home appliances Locations most susceptible to noise : 1. A television or radio is located near the A/C and A/C wiring. 2.
  • Page 87 EXPLODED VIEWS AND SPARE PARTS LISTS EXPLODED VIEWS AND SPARE PARTS LISTS 13.1 Outdoor Unit: Multi Trio-72 DCI Service Manual - Trio_Quattro DCI Revision Y05-01 13-1 CONTENT...
  • Page 88 EXPLODED VIEWS AND SPARE PARTS LISTS 13.2 Outdoor Unit: Multi Trio-72 DCI Part Name Quantity 4522604 Outlet Grid 4523652 Painted Left Cabinet Assy. 4526522 4-way Vavle R410a 452803600 4-way Valve System Assy. 452956700 4-way Valve Coil 452966200 Compressor Top Thermistor(CTT) 452677601 Outdoor Coil Thermistor(OCT) 467400000...
  • Page 89 EXPLODED VIEWS AND SPARE PARTS LISTS 13.3 Outdoor Unit: Multi Quattro-80 DCI Service Manual - Trio_Quattro DCI Revision Y05-01 13-3 CONTENT...
  • Page 90 EXPLODED VIEWS AND SPARE PARTS LISTS 13.4 Outdoor Unit: Multi Quattro-80 DCI Part Name Quantity 4522604 Outlet Grid 4523652 Painted Left Cabinet Assy. 4526522 4-way Vavle R410a 452803600 4-way Valve System Assy. 452956700 4-way Valve Coil 452966200 Compressor Top Thermistor(CTT) 452677601 Outdoor Coil Thermistor(OCT) 452956400...
  • Page 91 APPENDIX A APPENDIX A INSTALLATION AND OPERATION MANUAL ► INSTALLATION MANUAL TRIO-72, QUATTRO-80 DCI 14-1 Service Manual - Trio_Quattro DCI Revision Y05-01 CONTENT...
  • Page 92 INSTALLATION INSTRUCTIONS ENGLISH INSTRUCTIONS D INSTALLATION MONTAGEANLEITUNG DEUTSCH MANUALE D INSTALLAZIONE ITALIANO APPENDIX A CONTENT...
  • Page 93 E N G L I S H INSTALLATION INSTRUCTIONS 1. LOCATION OF OUTDOOR UNIT 2. ELECTRICAL CONNECTION BETWEEN INDOOR AND OUTDOOR UNIT 3. INSTALLATION/SERVICE TOOLS (ONLY FOR R410A PRODUCT) 4. REFRIGERANT TUBING FEATURES SETUP INSTALLATION TEST MISWIRING CHECK 7. FINAL TASKS NOTE: This manual is for Multi split applications only.
  • Page 94 I N S T A L L A T I O N I N S T R U C T I O N S FOR DCI SPLIT WALL MOUNTED AIR CONDITIONER LOCATION OF OUTDOOR UNIT Select the location considering the following: OUTDOOR UNIT 1.
  • Page 95 Fig.1 Fig.2 1.Bottom of outdoor unit Drain installation 2.Drain connector Example Fig 1 Fig 2 100 mm 100 mm 400 mm 500 mm 100 mm Fig.4 1. Mounting pads ( 4) Fig 4 APPENDIX A CONTENT...
  • Page 96 ELECTRICAL CONNECTION BETWEEN OUTDOOR INDOOR UNIT ELECTRICAL REQUIREMENTS Electrical wiring and connections should be made by qualified electricians and in accordance with local electrical codes and regulation. The air conditioner units must be grounded. The air conditioner units must be connected to an adequate power outlet from a separate branch circuit protected by a time delay circuit breaker, as specified on unit's nameplate.
  • Page 97 INSTALLATION/SERVICE TOOLS (ONLY FOR R410A PRODUCT) CAUTION New Refrigerant Air Conditioner Installation THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE LAYER. R410A refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils because the working pressure of R410A refrigerant is approx.
  • Page 98 TUBE SIZE TORQUE Tightening Liquid line 1/4" 15-20 N.M. REFRIGERANT TUBING torques of unions Suction line 3/8" 30-35 N.M. and valve caps: Suction line 1/2" 50-54 N.M. CONNECT THE INDOOR TO THE OUTDOOR UNIT Suction line 5/8" 75-78 N.M. The indoor unit contains a small quantity of nitrogen. Do not unscrew the nuts from the unit until you are ready to Fig 10 Fig 9...
  • Page 99 FEATURES SETUP Display Board 5.1. Display Board general description The display board serves as interface between the installer/technician to the A/C unit. -Scroll ( "Up" & "Down" ) - used to scroll between options (up and down) Select -Select - used to select an option. Down -Escape ( "Esc"...
  • Page 100 5.2.2. Forced mode operation If an IDU is defined as a priority unit, the operational mode (Cool/Heat) will be defined according to the priority unit request. If no unit is selected (as the default value) the first unit turned on determines the unit mode. Setup the Forced Mode dry contact to the required mode as per the following: Open-Cool...
  • Page 101 5.3.3. Power Shedding Open-Normal operation Shorted Power Shedding When "Power Shedding" dry contact is shorted, the unit will limit its maximum power consumption. 5.4. Features (Output) 5.4.1. Alarm The Alarm ('Output') Dry contact is used to indicate a problem or any malfunction of the system. An internal relay is used to close an external circuit which may include an external power supply.
  • Page 102 INSTALLATION TEST MISWIRING CHECK For proper system operation, each communication cable has to be connected to the corresponding indoor unit, following the refrigerant tubes. This means that the communication lines Ca, Cb, Cc, and Cd has to be connected to the indoor units A, B, C, and D respectively.
  • Page 103 FINAL TASKS 1. Check all valve caps and ensure that they had tightened properly. Close the valve cover. 2. Fill gaps on the wall between hole sides and tubing with sealer. 3. Attach wiring and tubing to the wall with clamps where necessary. 4.
  • Page 104 Part No 453242700 01 APPENDIX A CONTENT...

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